CH455898A - Method of making conductive vias - Google Patents
Method of making conductive viasInfo
- Publication number
- CH455898A CH455898A CH813464A CH813464A CH455898A CH 455898 A CH455898 A CH 455898A CH 813464 A CH813464 A CH 813464A CH 813464 A CH813464 A CH 813464A CH 455898 A CH455898 A CH 455898A
- Authority
- CH
- Switzerland
- Prior art keywords
- conductive vias
- making conductive
- making
- vias
- conductive
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
- H05K3/187—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating means therefor, e.g. baths, apparatus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
- C07F1/005—Compounds containing elements of Groups 1 or 11 of the Periodic Table without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1605—Process or apparatus coating on selected surface areas by masking
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
- C23C18/40—Coating with copper using reducing agents
- C23C18/405—Formaldehyde
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/108—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by semi-additive methods; masks therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/422—Plated through-holes or plated via connections characterised by electroless plating method; pretreatment therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/425—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern
- H05K3/427—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern initial plating of through-holes in metal-clad substrates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/425—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern
- H05K3/428—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern initial plating of through-holes in substrates having a metal pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0344—Electroless sublayer, e.g. Ni, Co, Cd or Ag; Transferred electroless sublayer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0347—Overplating, e.g. for reinforcing conductors or bumps; Plating over filled vias
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09581—Applying an insulating coating on the walls of holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0562—Details of resist
- H05K2203/0565—Resist used only for applying catalyst, not for plating itself
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/072—Electroless plating, e.g. finish plating or initial plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1377—Protective layers
- H05K2203/1383—Temporary protective insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/14—Related to the order of processing steps
- H05K2203/1423—Applying catalyst before etching, e.g. plating catalyst in holes before etching circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0094—Filling or covering plated through-holes or blind plated vias, e.g. for masking or for mechanical reinforcement
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
- H05K3/061—Etching masks
- H05K3/064—Photoresists
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Chemically Coating (AREA)
- Manufacturing Of Printed Wiring (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289633A US3269861A (en) | 1963-06-21 | 1963-06-21 | Method for electroless copper plating |
Publications (1)
Publication Number | Publication Date |
---|---|
CH455898A true CH455898A (en) | 1968-05-15 |
Family
ID=23112377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH813464A CH455898A (en) | 1963-06-21 | 1964-06-22 | Method of making conductive vias |
Country Status (8)
Country | Link |
---|---|
US (1) | US3269861A (en) |
AT (1) | AT250472B (en) |
BR (1) | BR6460196D0 (en) |
CH (1) | CH455898A (en) |
DE (1) | DE1521436B2 (en) |
DK (1) | DK125903B (en) |
GB (1) | GB1056814A (en) |
NL (1) | NL6407079A (en) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1095117A (en) * | 1963-12-26 | 1967-12-13 | Matsushita Electric Ind Co Ltd | Method of making printed circuit board |
DE1275646B (en) * | 1965-05-10 | 1968-08-22 | Siemens Ag | Method for producing a thermoelectric device |
US3415679A (en) * | 1965-07-09 | 1968-12-10 | Western Electric Co | Metallization of selected regions of surfaces and products so formed |
AT310285B (en) * | 1966-02-22 | 1973-09-25 | Photocircuits Corp | Process for the production of a laminated body for printed circuits |
US3426427A (en) * | 1966-08-01 | 1969-02-11 | Gen Dynamics Corp | Internal connection method for circuit boards |
US3481777A (en) * | 1967-02-17 | 1969-12-02 | Ibm | Electroless coating method for making printed circuits |
DE1615961A1 (en) * | 1967-04-12 | 1970-06-25 | Degussa | Process for the production of printed circuits |
FR1577660A (en) * | 1967-08-18 | 1969-08-08 | ||
US3640765A (en) * | 1969-08-06 | 1972-02-08 | Rca Corp | Selective deposition of metal |
US3628999A (en) * | 1970-03-05 | 1971-12-21 | Frederick W Schneble Jr | Plated through hole printed circuit boards |
JPS50112231A (en) * | 1974-02-15 | 1975-09-03 | ||
US4073981A (en) * | 1977-03-11 | 1978-02-14 | Western Electric Company, Inc. | Method of selectively depositing metal on a surface |
GB2000874B (en) * | 1977-07-12 | 1982-02-17 | Asahi Chemical Ind | Process for producing image and photosensitive element therefor and method of producing printed circuit board |
CH632356A5 (en) * | 1977-12-15 | 1982-09-30 | Bbc Brown Boveri & Cie | METHOD OF MAKING METAL PATTERNS ON SILICON DISCS FOR THERMOMIGRATION. |
JPS5494869A (en) * | 1978-01-11 | 1979-07-26 | Hitachi Ltd | Production of semiconductor device |
US4191789A (en) * | 1978-11-02 | 1980-03-04 | Bell Telephone Laboratories, Incorporated | Fabrication of bi-level circuits |
DE2932536A1 (en) * | 1979-08-09 | 1981-02-26 | Schering Ag | METHOD FOR PRODUCING PRINTED CIRCUITS |
US4392013A (en) * | 1979-12-27 | 1983-07-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Fine-patterned thick film conductor structure and manufacturing method thereof |
USH325H (en) | 1980-07-30 | 1987-09-01 | Richardson Chemical Company | Electroless deposition of transition metals |
DE3121131C2 (en) * | 1981-05-27 | 1984-02-16 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Process for the production of circuit boards provided with conductor tracks with metallic vias |
EP0096701B1 (en) * | 1981-12-11 | 1989-08-30 | Western Electric Company, Incorporated | Circuit board fabrication leading to increased capacity |
US4593016A (en) * | 1985-02-14 | 1986-06-03 | International Business Machines Corporation | Process for manufacturing a concentrate of a palladium-tin colloidal catalyst |
CA2018208C (en) * | 1989-06-16 | 1995-01-31 | Albert Ott | Method of manufacturing printed circuit boards |
US5302492A (en) * | 1989-06-16 | 1994-04-12 | Hewlett-Packard Company | Method of manufacturing printing circuit boards |
US5355019A (en) * | 1992-03-04 | 1994-10-11 | At&T Bell Laboratories | Devices with tape automated bonding |
ATE162923T1 (en) * | 1992-06-11 | 1998-02-15 | Macdermid Inc | METHOD FOR PRODUCING A CIRCUIT BOARD. |
US5758412A (en) * | 1992-06-11 | 1998-06-02 | Macdermid, Incorporated | Method of making a printed circuit board |
GB9212395D0 (en) * | 1992-06-11 | 1992-07-22 | Knopp John F D | Method of making a printed circuit board |
GB2284509B (en) * | 1993-12-03 | 1997-11-26 | John Frederick David Knopp | Method of making a printed circuit board |
US5840402A (en) * | 1994-06-24 | 1998-11-24 | Sheldahl, Inc. | Metallized laminate material having ordered distribution of conductive through holes |
US5620612A (en) * | 1995-08-22 | 1997-04-15 | Macdermid, Incorporated | Method for the manufacture of printed circuit boards |
GB9520887D0 (en) * | 1995-10-12 | 1995-12-13 | Philips Electronics Nv | Method of plating through holes of a printed circuit board |
US6044550A (en) * | 1996-09-23 | 2000-04-04 | Macdermid, Incorporated | Process for the manufacture of printed circuit boards |
US5747098A (en) * | 1996-09-24 | 1998-05-05 | Macdermid, Incorporated | Process for the manufacture of printed circuit boards |
US6023842A (en) * | 1996-09-24 | 2000-02-15 | Macdermid, Incorporated | Process for the manufacture of printed circuit boards |
US5862010A (en) * | 1997-07-08 | 1999-01-19 | International Business Machines Corporation | Transducer suspension system |
US6518160B1 (en) * | 1998-02-05 | 2003-02-11 | Tessera, Inc. | Method of manufacturing connection components using a plasma patterned mask |
US6162365A (en) * | 1998-03-04 | 2000-12-19 | International Business Machines Corporation | Pd etch mask for copper circuitization |
US6265075B1 (en) | 1999-07-20 | 2001-07-24 | International Business Machines Corporation | Circuitized semiconductor structure and method for producing such |
US20060178007A1 (en) * | 2005-02-04 | 2006-08-10 | Hiroki Nakamura | Method of forming copper wiring layer |
JP5491528B2 (en) * | 2009-02-06 | 2014-05-14 | エルジー・ケム・リミテッド | Insulated conductive pattern manufacturing method and laminate |
TWI441585B (en) * | 2012-02-29 | 2014-06-11 | Line laminating circuit structure | |
US9398703B2 (en) * | 2014-05-19 | 2016-07-19 | Sierra Circuits, Inc. | Via in a printed circuit board |
US10849233B2 (en) | 2017-07-10 | 2020-11-24 | Catlam, Llc | Process for forming traces on a catalytic laminate |
US10349520B2 (en) | 2017-06-28 | 2019-07-09 | Catlam, Llc | Multi-layer circuit board using interposer layer and conductive paste |
US10765012B2 (en) | 2017-07-10 | 2020-09-01 | Catlam, Llc | Process for printed circuit boards using backing foil |
US10827624B2 (en) | 2018-03-05 | 2020-11-03 | Catlam, Llc | Catalytic laminate with conductive traces formed during lamination |
US11460778B2 (en) * | 2018-04-12 | 2022-10-04 | Versum Materials Us, Llc | Photoresist stripper |
CN109195341A (en) * | 2018-09-12 | 2019-01-11 | 安捷利(番禺)电子实业有限公司 | A kind of preparation method for the precise printed circuit board improving route copper layer thickness and width |
CN112312668A (en) * | 2020-10-26 | 2021-02-02 | 江西志浩电子科技有限公司 | Manufacturing method for producing outer-layer circuit by using photosensitive ink |
CN115011952B (en) * | 2022-06-10 | 2023-06-20 | 江苏富乐华半导体科技股份有限公司 | Method for preventing chemical silver plating and plating leakage on surface of ceramic copper-clad substrate |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2897409A (en) * | 1954-10-06 | 1959-07-28 | Sprague Electric Co | Plating process |
US3119709A (en) * | 1956-09-28 | 1964-01-28 | Atkinson Lab Inc | Material and method for electroless deposition of metal |
US3031344A (en) * | 1957-08-08 | 1962-04-24 | Radio Ind Inc | Production of electrical printed circuits |
US2938805A (en) * | 1958-03-31 | 1960-05-31 | Gen Electric | Process of stabilizing autocatalytic copper plating solutions |
US3075856A (en) * | 1958-03-31 | 1963-01-29 | Gen Electric | Copper plating process and solution |
US3134690A (en) * | 1960-02-09 | 1964-05-26 | Eriksson Lars Erik | Method for deposition of a copper layer on a non-conductive material |
US3095309A (en) * | 1960-05-03 | 1963-06-25 | Day Company | Electroless copper plating |
US3146125A (en) * | 1960-05-31 | 1964-08-25 | Day Company | Method of making printed circuits |
-
1963
- 1963-06-21 US US289633A patent/US3269861A/en not_active Expired - Lifetime
-
1964
- 1964-06-19 BR BR160196/64A patent/BR6460196D0/en unknown
- 1964-06-19 GB GB25359/64A patent/GB1056814A/en not_active Expired
- 1964-06-20 DK DK313164AA patent/DK125903B/en unknown
- 1964-06-22 AT AT536464A patent/AT250472B/en active
- 1964-06-22 CH CH813464A patent/CH455898A/en unknown
- 1964-06-22 NL NL6407079A patent/NL6407079A/xx unknown
- 1964-06-22 DE DE19641521436 patent/DE1521436B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE1521436B2 (en) | 1972-10-12 |
DE1521436A1 (en) | 1970-01-08 |
AT250472B (en) | 1966-11-10 |
GB1056814A (en) | 1967-02-01 |
NL6407079A (en) | 1964-12-22 |
US3269861A (en) | 1966-08-30 |
BR6460196D0 (en) | 1973-12-26 |
DK125903B (en) | 1973-05-21 |
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